In my opinion, if there is an emotional bond, then build it. If not keep it for resale later. You probably paid a little too much if its an investment to resell it right away. I have recently see a few sell for $125 to $175, but not on ebay. As the supply slowly dries up, it will go up in value, just make sure its sealed and preserved.

I used three of the decals from the 1D kit, before I scrapped the idea and bought aftermarket and masks. Tamiya for some unexplainable reason makes horrible decals, and being newer decals does not matter, they all suck. If you buy a Tamiya Corsair, plan on buying decals. The rest of the kit is beautiful.

I’ll spill my secret....I actually have a plan. This is why I have been buying up as many P-40s as i can. My next build is actually going to be a production line, I am building 3 x P-40Es, 2 x P-40Ks, 2 P-40Ns, and 2 P-40B/Cs. I’m planning on doing a model and country from all theaters of the war, I even am considering doing a Turkish and Canadian P-40 too. I’m doing them all simultaneously, since all but 2 are Hasegawa, I should be able to address any build issues efficiently. Most will be OOB, except for a few pieces of PE and resin.
I plan to also do a similar FW-190 production line, building a 1, 3, 5, 7, A8, F8, D9, and a D-13, although these will have more AM bits. This is not the first time I have done a project like this, I built 4 1/72 FW-190’s and and a BF-109 at the same time. Then I did 6 1/72 Japanese aircraft at the same time.
I found that I can build 3-4 times as fast when I build this way, and keep the quality up.

I got another P-40E, that makes 4 or 5 now, not sure, have to see what shows up at the door! Plus I got high bids on another P-40E, an FW-190A5, N1K2, a Sturmtiger, and a miniart building. Not to mention the two or three P-40s I bought that are in the mail, plus a Trump MiG 21. My stash is rapidly approaching 150 1/32 aircraft kits, not counting the 50 or so 1/35 kits.
I think I have a problem.

Last night I was cruising eBay, and I kept finding kits I wanted for a very good starting bid, well, this morning I am the winning 5 auctions right now, and just paid for another one an hour ago....this may get expensive....

I mixed my own from Tamiya
These﻿ a﻿re some popular paint mixes for Tamiya paints, the one I used is in the middle, it looked the most right to me, with a slight sun fading, the one on the left would be appropriate for a highly faded GSB, on the right, just looked to blackish, without the Blue tint to it. I also tested several ﻿stock paints, but none looked very GSB. A lot of people like the Model Master, but I felt it looked more appropriate to Korean War.﻿﻿
Here is my build thread